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Finding the Fourth Proportional to 309,176.10, 463,764.15 and 239,105.70

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Solution

The fourth proportional to 309,176.10, 463,764.15 and 239,105.70 is: 358,658.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,176.10 : 463,764.15 = 239,105.70 : x
  2. Step 2: Convert to fraction form
    309,176.10/463,764.15 = 239,105.70/x
  3. Step 3: Cross multiply
    309,176.10x = 463,764.15 × 239,105.70
  4. Step 4: Simplify right side
    309,176.10x = 110,888,651,720.66
  5. Step 5: Solve for x
    x = 110,888,651,720.66/309,176.10
  6. Step 6: Final answer
    x = 358,658.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.